import kotlin.math.max

fun main() {
    val builder = StringBuilder()

    val n = readInputLine().toInt()
    val aArr = readInputLine().split(" ").map { it.toInt() }.toIntArray()
    val bArr = readInputLine().split(" ").map { it.toInt() }.toIntArray()

    var max = 0
    var maxCnt = 0

    fun dfs(phase: Int, taken: Int, score: Int) {
        if (phase == n) {
            if (score > max) {
                max = score
                maxCnt = 1
            } else if (score == max) {
                maxCnt++
            }
            return
        }

        for (i in 0 until n) {
            if (taken and (1 shl i) == 0) {
                dfs(phase + 1, taken or (1 shl i), score + max(0, aArr[i] - bArr[phase]))
            }
        }
    }

    dfs(0, 0, 0)

    builder.appendln(maxCnt)

    print(builder.toString())
}

fun readInputLine(): String {
    return readLine()!!
}